MY203713A - Abnormality detecting system for a solar power grid - Google Patents

Abnormality detecting system for a solar power grid

Info

Publication number
MY203713A
MY203713A MYPI2021003790A MYPI2021003790A MY203713A MY 203713 A MY203713 A MY 203713A MY PI2021003790 A MYPI2021003790 A MY PI2021003790A MY PI2021003790 A MYPI2021003790 A MY PI2021003790A MY 203713 A MY203713 A MY 203713A
Authority
MY
Malaysia
Prior art keywords
solar power
amount
electrical current
power grid
detecting system
Prior art date
Application number
MYPI2021003790A
Inventor
Hsu Chun-Chi
Original Assignee
Lixma Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from TW109123086A external-priority patent/TWI748552B/en
Priority claimed from TW109140960A external-priority patent/TWI737547B/en
Application filed by Lixma Tech Co Ltd filed Critical Lixma Tech Co Ltd
Publication of MY203713A publication Critical patent/MY203713A/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters
    • H02H7/1227—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters responsive to abnormalities in the output circuit, e.g. short circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for DC systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H02H7/263—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of measured values
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2101/00—Supply or distribution of decentralised, dispersed or local electric power generation
    • H02J2101/20—Dispersed power generation using renewable energy sources
    • H02J2101/22—Solar energy
    • H02J2101/24—Photovoltaics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Artificial Intelligence (AREA)
  • Evolutionary Computation (AREA)
  • Photovoltaic Devices (AREA)
  • Inverter Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

A system is provided to be disposed between a solar power module (91) and a power inverter (92). The solar power module (91) outputs a solar power signal to the power inverter (92). The system includes a circuit protecting unit (2) and a processor (3). The processor (3) obtains an amount of electrical current outputted by the power inverter (92) and an amount of electrical current flowing through a current detector (23) of the circuit protecting unit (2). When it is determined that the amount of electrical current outputted by the power inverter (92) is zero and the amount of the electrical current flowing through the current detector (23) is non-zero, the processor (3) controls a power switch (24) of the circuit protecting unit (2) to switch to an open circuit state. (The most illustrative drawing is Fig. 2)
MYPI2021003790A 2020-07-08 2021-07-02 Abnormality detecting system for a solar power grid MY203713A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW109123086A TWI748552B (en) 2020-07-08 2020-07-08 Solar DC feeder disaster prevention system
TW109140960A TWI737547B (en) 2020-11-23 2020-11-23 Solar DC feeder disaster prevention system

Publications (1)

Publication Number Publication Date
MY203713A true MY203713A (en) 2024-07-15

Family

ID=76765058

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2021003790A MY203713A (en) 2020-07-08 2021-07-02 Abnormality detecting system for a solar power grid

Country Status (7)

Country Link
US (1) US12003095B2 (en)
EP (1) EP3937362B1 (en)
JP (1) JP7154644B2 (en)
KR (1) KR102608749B1 (en)
CN (1) CN113410825B (en)
AU (1) AU2021204712B2 (en)
MY (1) MY203713A (en)

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US20210351612A1 (en) * 2020-05-11 2021-11-11 Duke Energy Corporation Solar inverter power output communications methods, and related computer program products
CN113131518B (en) * 2021-04-19 2022-05-24 阳光电源股份有限公司 MLPE photovoltaic system and MLPE equipment detection method thereof
JP7849209B2 (en) * 2022-03-31 2026-04-21 本田技研工業株式会社 Power systems and estimation methods
JP2023174193A (en) * 2022-05-27 2023-12-07 Ntn株式会社 power generation unit
US20260095044A1 (en) * 2024-09-27 2026-04-02 Google Llc Globally irregular power grid

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JP2943133B2 (en) * 1994-04-30 1999-08-30 キヤノン株式会社 Insulation state measuring method, insulation state determination device, and distributed power generation device using the same
JPH09327179A (en) 1996-06-05 1997-12-16 Mitsubishi Electric Corp Abnormality detection device and protection device for AC / DC converter
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JP2005168156A (en) 2003-12-02 2005-06-23 Mitsubishi Heavy Ind Ltd Ground fault countermeasure device and power generation system
US20110090607A1 (en) * 2009-10-20 2011-04-21 Luebke Charles J String and system employing direct current electrical generating modules and a number of string protectors
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KR101430184B1 (en) * 2013-04-26 2014-08-13 주식회사 오키 Emergency line bypass switching circuit and power converter using the bypass switching circuit
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JP2016092881A (en) 2014-10-30 2016-05-23 有限会社バベッジ Breaker and breaker device control
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Also Published As

Publication number Publication date
JP7154644B2 (en) 2022-10-18
AU2021204712A1 (en) 2022-01-27
EP3937362B1 (en) 2025-07-02
JP2022016352A (en) 2022-01-21
AU2021204712B2 (en) 2022-10-20
EP3937362C0 (en) 2025-07-02
KR20220006475A (en) 2022-01-17
CN113410825B (en) 2025-01-10
CN113410825A (en) 2021-09-17
KR102608749B1 (en) 2023-12-01
US12003095B2 (en) 2024-06-04
US20220014015A1 (en) 2022-01-13
EP3937362A1 (en) 2022-01-12

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